diff --git a/nextjs-app/components/Modal.module.css b/nextjs-app/components/Modal.module.css
index d335a75..36efdda 100644
--- a/nextjs-app/components/Modal.module.css
+++ b/nextjs-app/components/Modal.module.css
@@ -79,7 +79,11 @@
   font-family: var(--font-display);
 }
 
+/* 44px, the MOBILE.md touch-target minimum: the 24px icon and its padding
+   came to 40, and the phone filter sheet journey caught it. */
 .closeButton {
+  min-width: 2.75rem;
+  min-height: 2.75rem;
   padding: 0.5rem;
   background: transparent;
   border: none;